facing angle

Since I'm using 1.26 I can't edit the facing angle of the effects, I have to use the "dummy.mdl" model used in missile libraries to do that, but it doesn't work, is because it never have facing angle? have I another option?

Can you tell me what stats I have to change to do that? because I wanna when I use dummies I wanna make them attack/cast inmediatly without need make them face an specific angle.

Hello, i am working on a spell with the following effect: Caster casts the spell, units within 500 radius of caster have their movement speed reduced (via dummy unit + ability) only if they are facing away from the caster. What im trying to do is to detect if the picked units are facing away...

Hello This is a fast question I am trying to make a triggered ability to make more damage if it hits a unit from behind (dont mind the projectile, is an instant ability based on cripple)